Glad to her is progressing.

I would not worry about getting her exercising. Some simple walks should be enough. If they cause a head ache, reduce the distance, pace and such the next time.

I am concerned about the amount of time she spends doing homework if you need to keep her focused. She may need to take breaks then return to the task rather than be pushed. I could only stay focused on a task/activity for about 15 minutes then needed a break or changed to a different activity/task.

What is the PT for if she does not have a sore/stiff neck ? btw, That does not mean she has not suffered a subtle neck injury/strain.

The important concept is to reduce the peak activity levels. Rest between high activity levels is not the same as reducing the peak levels. Extra sleep because she has been working hard all week may work for a healthy person but the injured brain only heals when peak efforts are lowered and avoided. The key is moderating the effort level.

Have you read the vitamins and supplements sticky at the top ? Post 101 on Nov 8, 2014 has the updated information.

My best to you both.